HQ.app is a central place to work with multiple online services (including connectors for Dropbox, Gdrive, Slack, Gmail, Chrome Bookmarks, and more).
Imagine entering a search query and getting documents, attachments & notes from all your connected accounts. Next create a cloud-independent shared folder to bring together your Google Documents, Onedrive Excels and Bookmarks without being forced to migrate data. Finally check your personalized activity feed to keep track of your collaborators and check recent work.
HQ.app eliminates tab switching, so you can focus on getting things done!